Logo

Open House Archive

Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.

projects-banner

All Projects

By ProjectBy Buildathon
Learn
  • Explore Course
Build
  • Explore Buildathon
  • Project Archive
Hack
Hack Coming Soon
  • Explore IRL Hackhouse
  • How to Qualify
  • Past Events

Builder Highlight

Most Hackathon Won

Most Project Built

Builder Highlight

Most Buildathon Won
M

Manobendra Mandal

Kolkata, India
Champion
3
No.1
V

Vivek Sahu

India
Champion
2
No.2
s

simp1e

china
Champion
2
No.3
Most Project Built
A

Aaditya Rawat

Champion
29
No.1
S

Skia Variants

The Blockchain
Champion
14
No.2
A

Akan

Lagos, Nigeria.
Champion
14
No.3

Project Highlight

Project Highlight

EduBricks

EduBricks is a platform enabling fractional ownership of tokenized real estate, making investments more accessible

Champion

x

Arbitrum X EDU Chain Mini-Hack

Pencil Finance

Bringing $3 Trillion in Student Loans On-Chain

Champion

x

Arbitrum X EDU Chain Mini-Hack

Stylish Course to Stylus Smart Contract Development

A comprehensive course on deploying and interacting with Stylus smart contracts on Arbitrum and EDU Chain, featuring a full-fledged Stylus IDE for seamless deployment and interaction.

Champion

x

Arbitrum X EDU Chain Mini-Hack

VineFinance

Vine Finance is a decentralized, modular revenue strategy protocol.

Champion

x

Arbitrum X EDU Chain Mini-Hack

Orbital

A next-gen AMM that supports 2, 3, or even 10,000 stablecoins in a single pool, scaling concentrated liquidity into higher dimensions.

+1
Champion

x

Arbitrum Open House India: Online Buildathon

zkArb SDK

zkArb SDK is a developer toolkit that makes building zero-knowledge apps on Arbitrum simple and fast. It provides plug-and-play Circom circuit compilation, proof generation, and ready-to-deploy verifier contracts, so developers can focus on dApps instead of cryptography.

Champion

x

Arbitrum Open House India: Online Buildathon

Stagepay

Milestone escrow for freelance work in USDG or USDC on Arbitrum. The client funds the whole job up front; silence past the review window pays the freelancer. No platform, no owner key, no fee.

Tech StackSolidity, Web3
Builder
DDongsuk Yang
DeFiOther

VeraKey

One passkey. Unlinkable on-chain identities. Every app gets its own USDG account and ID on Arbitrum; each approval is a ZK proof made in the browser, so nothing on-chain links them.

Tech StackReact, Node, Solidity, Rust, Noir, Arbitrum Stylus, Zero-Knowledge, WebAuthn
Builder
NNia Novida
InfraDeFi

Cadence

Cadence Protocol is a decentralized estate planning and inheritance engine built to secure family wealth on-chain. 1. Trustless Execution: Uses Proof-of-Life heartbeats and 2-of-3 guardian consensus to trigger inheritance without probate courts or intermediaries. 2. Autonomous Yield Streams: Locks and distributes assets via automated vesting schedules, earning real lending interest (Aave v3 & USDG) on unvested capital. 3. Privacy-First: Allocations remain client-side encrypted until inheritance conditions are cryptographically met.

Tech StackSolidity, Rust, Next, React, Node, Web3, TypeScript, Foundry
Builder
DDAVID FADOJU
RWADeFiInfra

CorpShift

CorpShift keeps DeFi safe when stock tokens change. It normalizes and attests corporate actions, verifies onchain multipliers, and gives protocols policy gates and economic-unit accounting.

Tech StackReact, Node, Web3, Solidity
Builder
VVu Tang
DeFiRWAInfra

TRAIDE Agents with Receipts

Autonomous AI agents trading TRAIDE's V2 DEX on Arbitrum Sepolia. Every decision is a hash-chained receipt anchored on Arbitrum and Robinhood Chain, verifiable by anyone with one command.

Tech StackPython, Solidity, Web3
Builder
RRyan Hammer
DeFiAI

BoringDeFi

Non-custodial USDC vault on Arbitrum. Spreads deposits across Aave, Fluid, Compound and Morpho, and refuses on-chain to put money anywhere it couldn't get back today.

Tech StackWeb3, Solidity, Ethers, Python
Builder
DDainius Zino
DeFi

Gifted

Invest in US Stock Tokens with digital dollars on Robinhood Chain. Buy from $1, automate recurring buys and limit orders, and keep every share in a passkey-secured account you control.

Tech StackSolidity, Rust, Web3, React, Node
Builder
FFrank Opia
DeFiRWA

Sherwood

Programmable downside protection for stock tokens on Robinhood Chain. Choose your floor, pay a fixed premium, and keep the upside while your downside is protected.

Tech StackSolidity, React, Next, Web3
Builder
MManass Kusko
RWADeFiInfra

RentalRide

Verifiable car rental search powered by Arbitrum Stylus — ranking 100+ vehicles by 7 weighted criteria on-chain.

Tech StackWeb3, Solidity, Rust, Java, Stylus
Builder
GGreg Alex
RWA

Gapguard

A Uniswap v4 hook that prices the hours the stock market is closed, so LPs on tokenized stocks get paid for the weekend gap.

Tech StackSolidity, Web3
Builder
DDavid Corey
DeFiRWAInfra

InvoiceFence

One obligation. One payment. Human-approved invoice settlement shared by independent executors, with verified Arbitrum-chain testnet payment and duplicate rejection.

Tech StackReact, Ethers, Node, Solidity
Builder
LLee Long
Infra

batpilot

Your US stocks, managed while you sleep

Tech StackReact, Web3, Node, Solidity, Rust
Builder
MMưa Phi Bảo Trần
RWADeFi
  • Previous
  • 1
  • 2
  • 3
  • 4
  • More pages
  • 97
  • Next